/*
 * Copyright 1999-2018 Alibaba Group Holding Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.alibaba.nacos.config.server.utils;

/**
 * Thread util
 * @author Nacos
 *
 */
public class ThreadUtil {

	/**
	 * 通过内核数，算出合适的线程数；1.5-2倍cpu内核数
	 * @return thread count
	 */
	public static int getSuitableThreadCount() {
		final int coreCount = Runtime.getRuntime().availableProcessors();
		int workerCount = 1;
		while (workerCount < coreCount * THREAD_MULTIPLER) {
			workerCount <<= 1;
		}
		return workerCount;
	}
	
	private final static int THREAD_MULTIPLER = 2;
}
